UnhandledPromiseRejectionWarning: Unhandled

[anandpurushottam]

(node:6984) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: spawn .exe ENOENT
(node:6984) DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit
code.

const jsonDump = bento4.mp4dump.exec(inputVideo, args)

Can you add a proper sample code to run commands .

[philmoss321]

Looks like the exec command returns a promise https://github.com/markusdaehn/node-fluent-bento4/blob/master/src/exec.js, so you'll need to resolve that like a normal ES6 promise...

Either use async/await (ES7/Typescript) inside of a try/catch block, they're using async await in their unit tests for the exec module
try { const jsonDump = await bento4.mp4dump.exec(inputVideo, args) catch (error) { // handle error }

Or follow up your exec call with .then and .catch
bento4.mp4dump.exec(inputVideo, args).then((data) => { // use data }).catch((error) => { // handle error )